| Subject | Re: [PATCH 01/16] math128: Introduce various 128bit primitives | From | Peter Zijlstra <> | Date | Fri, 26 Oct 2012 12:44:04 +0200 |
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On Fri, 2012-10-26 at 12:36 +0200, Thomas Gleixner wrote: > By all means. nsec precision is a completly academic thought > exercise. It's really pointless to even think about anything below > microseconds resolution. > > We can still have the user space interface handing in the information > in nsec resolution, but it's reasonable to scale it down to something > useful. Just shift the incoming information right by 10, so you're in > the 1us resolution for all the internal math and all your limitation > problems are gone. A shift by ten for converting back and forth to > nsecs is not a real performance issue.
I'm fine with that.. all I wanted was to not have the undefined overflow we initially had.
I had hoped the u128 stuff might be elsewise useful, but if we don't want to go there, that's fine.
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